Home / 30,935.50-42,691.02-16,788.35

Finding the Fourth Proportional to 30,935.50, 42,691.02 and 16,788.35

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Solution

The fourth proportional to 30,935.50, 42,691.02 and 16,788.35 is: 23,167.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,935.50 : 42,691.02 = 16,788.35 : x
  2. Step 2: Convert to fraction form
    30,935.50/42,691.02 = 16,788.35/x
  3. Step 3: Cross multiply
    30,935.50x = 42,691.02 × 16,788.35
  4. Step 4: Simplify right side
    30,935.50x = 716,711,785.62
  5. Step 5: Solve for x
    x = 716,711,785.62/30,935.50
  6. Step 6: Final answer
    x = 23,167.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.